11:43AM | 05/25/03
Member Since: 05/24/03
3 lifetime posts
Hope this isn't a really stupid question; we have a tabletop humidifier in our bedroom and it has been on for a while this year; in the past few days however the moisture has started to grow mould on the plaster ceiling. I have tried to clean it off just with a household cleaner but it seems to come back even worse afterwards. How can I clean it off and prevent it from coming back? thanks!


01:54PM | 05/25/03
Member Since: 05/19/03
457 lifetime posts
I really don't think a humidifier could do something like this,maybe you have a small roof leak in the attic and the moisture is coming from this,bad roof vents.With you cleaning it did you use water with the cleaner if so you are just adding fuel to the fire.
Is this a textured ceiling?If it is just plain drywall that is painted you could cut a square a little bigger than what the mold is and get a better look at what maybe causing the problem.Then when you get it fixed patch the area and prime and paint.
Otherwise you could repaint and clean all you want and this problem may presist.
But without actually seeing the problem it is hard to determine,if you are 100% sure that it is the humidifier.Put it on the floor next time or get rid of it completely.
A few things to look at did you just buy the home?if just moved in the past year previous owner could of just painted over a bad spot,this happens quite abit,and now it just shown it's troubled area their.
have you had the humidifer in this room before in the past?If so why would it just happen now.
Mold is a cause from alot of moisture,so it may be another concern other than the humid...
I did not answer your question but maybe helped to figure out why it is happening....good luck


06:04PM | 05/25/03
Member Since: 05/24/03
3 lifetime posts
We did actually have a leak recently; didn't think this was part of the problem though (but I'm no expert!). Today I had the humidifier on (we need to keep it on as per doctor's recommendations for our son although it seems mold will compound his breathing troubles before long)and it is just wet all the way down the wall and around the molding at the top of the wall. Yes, it is a textured ceiling. We have lived here for 3 years next month; this is the 3rd winter we've had it on but the first we've had any trouble. I didn't use water when cleaning it; just the cleaner. Thanks for your help.


07:32PM | 05/25/03
Member Since: 05/19/03
457 lifetime posts
I would bet the leak is or could be part of this problem.The moisture got absorbed into the drywall,and most likely is causing that problem if you have had the house for 3 years and using the humid for this long,without any signs of moisture.
So im no expert on curing this type of problem but you answered your own question,it was from the leak,I would start with that 1st.
depending on how it was fixed make sure it was done good.
When you say wet or moldy down the wall and molding do you mean still?Or from the leak?Or does the humidifier keep it like this?
If it is moldy down the wall this is not caused from humidifer,i'd be most certain that water got absorbed into the drywall now and that with the leak you had prolly went down that part of the wall.
You have got more than a clean-up problem or painting.
I do not know how bad it is,but it needs to be replaced from what I am hearing.
Best bet get a trusted drywall guy to look at it,get a few to see the problem this way you can get the best determination from the problem if you get 4 guy's that come and 3 say the same thing and 1 say's different well my money would be on the other 3.
Depnding how handy you or people you know are shouldn't be too hard if you wantwed to tackle it yourself.
They make the spray texture you can do yourself,and replacing a sheet of drywall isn't to hard.
Good luck hopefully I did a little help,being around a zillion other Subcontractor's help a little.


02:44AM | 05/26/03
Member Since: 05/24/03
3 lifetime posts
Thanks again for all of your help! What I meant by "wet" was that the humidifier is keeping the wall wet (dripping) and the ceiling mouldy. I spoke to my husband last night about what you said in your first reply; when we had the leak in the roof, the insulation of course got wet. He's going to inspect it tonight after work and see if any of the insulation that's left is still wet; he'll remove it and we'll have to replace that corner piece of drywall in the ceiling. thanks again!


06:20AM | 05/26/03
Member Since: 05/19/03
457 lifetime posts
When he removes that insulation check to see if leak is stopped by someone running or spraying a garden hose or pressure washer on the roof.Also just a tip remove enough of the drywall to hit the next stud or rafter so this way you got something to scerw or nail the new piece to,while the old is removed look at edges where you cut it out and see if it looks like any moisture is still on the edges where you cut it out on the ceiling.You don't want to go through this again so if any doubts and if able to replace the whole sheet up their.I know it sounds troublesome but this way you'll know that moisture is no longer in any of the S.Rock up in that area.
Happy Fixing.


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